:root {
  font-family: system-ui, Avenir, Helvetica, Arial, sans-serif;
  line-height: 1.6;
  font-weight: 400;
  color: #303133;
  background-color: #ffffff;

  font-synthesis: none;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  -webkit-text-size-adjust: 100%;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

a {
  font-weight: 500;
  color: #667eea;
  text-decoration: none;
  transition: color 0.3s ease;
}

a:hover {
  color: #5a6fd8;
}

body {
  margin: 0;
  min-width: 1200px; /* PC端最小宽度限制 */
  min-height: 100vh;
  background-color: #f8f9fa;
  color: #303133;
}

h1 {
  font-size: 2.5em;
  line-height: 1.2;
  font-weight: 700;
  margin-bottom: 0.8em;
}

h2 {
  font-size: 2em;
  line-height: 1.3;
  font-weight: 600;
  margin-bottom: 0.6em;
}

h3 {
  font-size: 1.5em;
  line-height: 1.4;
  font-weight: 600;
}

p {
  line-height: 1.8;
  margin-bottom: 1em;
}

button {
  border-radius: 6px;
  border: 1px solid transparent;
  padding: 0.8em 1.6em;
  font-size: 1em;
  font-weight: 500;
  font-family: inherit;
  background-color: #667eea;
  color: white;
  cursor: pointer;
  transition: all 0.3s ease;
}

button:hover {
  background-color: #5a6fd8;
  transform: translateY(-1px);
}

button:focus,
button:focus-visible {
  outline: 2px solid #667eea;
  outline-offset: 2px;
}

#app {
  width: 100%;
  min-height: 100vh;
}

/* PC端通用容器类 */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* 通用标题样式 */
.section-title {
  text-align: center;
  margin-bottom: 50px;
  position: relative;
}

.section-title h2 {
  color: #303133;
  margin-bottom: 15px;
  position: relative;
  display: inline-block;
  padding-bottom: 15px;
}

.section-title h2::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background-color: #667eea;
}

.section-title p {
  color: #909399;
  font-size: 16px;
  margin: 0;
}

/* 按钮样式 */
.btn-primary,
.btn-secondary,
.btn-outline {
  display: inline-block;
  padding: 12px 28px;
  font-size: 16px;
  font-weight: 500;
  text-decoration: none;
  border-radius: 6px;
  transition: all 0.3s ease;
  text-align: center;
  cursor: pointer;
}

.btn-primary {
  background-color: #667eea;
  color: white;
  border: none;
}

.btn-primary:hover {
  background-color: #5a6fd8;
  transform: translateY(-2px);
  color: white;
}

.btn-secondary {
  background-color: #ffffff;
  color: #667eea;
  border: 2px solid #667eea;
}

.btn-secondary:hover {
  background-color: #667eea;
  color: white;
  transform: translateY(-2px);
}

.btn-outline {
  background-color: transparent;
  color: #667eea;
  border: 1px solid #667eea;
}

.btn-outline:hover {
  background-color: #667eea;
  color: white;
}
